# SDR AALA201707319036

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 28, 2017
- Submitted: July 31, 2017
- Operation: Air carrier
- Aircraft: [N721UW](https://openairdocs.org/aircraft/N721UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1095
- Aircraft time: 49,483 hours, 28,652 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Switch
- Part number: E0175B01E00
- Condition: Faulty
- Location: Vent Blower
- Stage of operation: NR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201707319036

## Discrepancy

VENT BLOWER FAULT ACCOMPANIED BY ELECTRICAL ODOR. ODOR DISSIPATED AFTER BLOWER FAULTED AND PLACED TO OVER RIDE. MAINTENANCE REPLACED MICROSWITCH 8HQ (FOR BURNED BLADE) PER ESPM 20-45-24 AND AWM 21-26-02. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK PER AMM 21-26-00-710-001. AIRCRAFT WAS GROUNDED.

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